Blawar's Tinfoil has fewer glitches, but it's closed-source, and the only way to use it with Atmosphere is to use fusee-primary.
As I said a few times before, you could have backed up your save files using JKSV and restored them later.
Ok that hting with the JKSV sounds like the solution I'm looking for. I will search for a guide now. Hopefully this works.
Thanks so much!